Initial commit: Shop Database Flask Application

Flask backend with Vue 3 frontend for shop floor machine management.
Includes database schema export for MySQL shopdb_flask database.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/views/Login.vue

@@ -0,0 +1,69 @@
+<template>
+  <div class="login-container">
+    <div class="login-box">
+      <h1>ShopDB</h1>
+
+      <div v-if="error" class="error-message">
+        {{ error }}
+      </div>
+
+      <form @submit.prevent="handleLogin">
+        <div class="form-group">
+          <label for="username">Username</label>
+          <input
+            id="username"
+            v-model="username"
+            type="text"
+            class="form-control"
+            required
+            autofocus
+          />
+        </div>
+
+        <div class="form-group">
+          <label for="password">Password</label>
+          <input
+            id="password"
+            v-model="password"
+            type="password"
+            class="form-control"
+            required
+          />
+        </div>
+
+        <button type="submit" class="btn btn-primary" :disabled="loading">
+          {{ loading ? 'Logging in...' : 'Login' }}
+        </button>
+      </form>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+import { useRouter } from 'vue-router'
+import { useAuthStore } from '../stores/auth'
+
+const router = useRouter()
+const authStore = useAuthStore()
+
+const username = ref('')
+const password = ref('')
+const error = ref('')
+const loading = ref(false)
+
+async function handleLogin() {
+  error.value = ''
+  loading.value = true
+
+  const result = await authStore.login(username.value, password.value)
+
+  loading.value = false
+
+  if (result.success) {
+    router.push('/')
+  } else {
+    error.value = result.message
+  }
+}
+</script>